JPH01185401A - Limit gauge - Google Patents

Limit gauge

Info

Publication number
JPH01185401A
JPH01185401A JP987788A JP987788A JPH01185401A JP H01185401 A JPH01185401 A JP H01185401A JP 987788 A JP987788 A JP 987788A JP 987788 A JP987788 A JP 987788A JP H01185401 A JPH01185401 A JP H01185401A
Authority
JP
Japan
Prior art keywords
gauge
parts
limit
weight
plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP987788A
Other languages
Japanese (ja)
Inventor
Takeshi Shioda
塩田 武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP987788A priority Critical patent/JPH01185401A/en
Publication of JPH01185401A publication Critical patent/JPH01185401A/en
Pending legal-status Critical Current

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  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

PURPOSE:To secure high measuring accuracy by suppressing the abrasion of a gauge part over a long period of time and to enhance the reliability of a clip gauge and a plug gauge, by forming the gauge part brought into contact with an object to be measured of ceramics. CONSTITUTION:Gauge parts 2 are arranged in opposed relationship so as to provide a gap not only to the passing part 1a of a gauge main body 1 but also to the stop part 1b thereof and respectively bonded by an epoxy type room temp. curable adhesive. Further, the gauge parts 2 are respectively bonded to the passing part 1a and stop part 1b of the main body 1 by pairs and subsequently subjected to grinding processing and lap-finish processing to secure respective necessary gap dimensions, that is, the max. and min. tolerance dimensions. By this method, the abrasion of the gauge parts is suppressed to make it possible to enhance the reliability of a clip gauge and a plug gauge.

Description

【発明の詳細な説明】 [発明の目的コ (産業上の利用分野) 本発明は限界ゲージに関する。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to limit gauges.

(従来の技術) 限界ゲージは、製品の限界寸法すなわち最大許容寸法の
r−ノと最小許容寸法のr−ノとからなっている。限界
ゲージには軸周の挟みr−ノと孔周のfラダゲージとが
あり、挟みr−ノは内側寸法で、孔周は外側寸法で夫々
許容寸法を定め、最大、最小許容寸法の両r−ノのいず
れかが通シ側または止り側となっている。すなわち、挟
みr−ノでは最大許容寸法側が通シ側で、最小許容寸法
側が止p側であり、グラグダーノは最大許容寸法側が止
υ側で、最小許容寸法側が通り側となる。
(Prior Art) A limit gauge is made up of a critical dimension of a product, that is, a maximum allowable dimension r-no and a minimum allowable dimension r-no. There are two types of limit gauges: the pincer r-no on the shaft circumference and the f-ladder gauge on the hole circumference.The pincer r-no determines the inside dimension and the hole circumference determines the allowable dimensions respectively, and both the maximum and minimum allowable dimensions r - Either of the marks is the through side or the non-stop side. That is, in the case of the r-shaped clip, the maximum permissible dimension side is the through side, and the minimum permissible dimension side is the stop p side, and for Gragdano, the maximum permissible dimension side is the stop υ side, and the minimum permissible dimension side is the through side.

そして、この限界ゲージは製品の寸法が許容寸法範囲に
あるか否かを容易に測定できることから、各種の製造工
程の製品検査用に使用されている。
This limit gauge is used for product inspection in various manufacturing processes because it can easily measure whether the dimensions of a product are within an allowable dimension range.

しかして、従来の限界r−ゾは、被測定物と接触するゲ
ージ部、すなわち挟みゲージのゲージ部とグラグゲーノ
のダーツ部を含むゲージ全体を、機械的強度を考慮して
工具鋼などの鋼材で形成している。
Therefore, the conventional limit r-zo is that the entire gauge including the gauge part that comes into contact with the object to be measured, that is, the gauge part of the pincer gauge and the dart part of the Graggeno, is made of steel such as tool steel in consideration of mechanical strength. is forming.

(発明が解決しようとする課題) 限界ゲージのゲージ部は、被測定物と頻繁に接触するた
めに、この接触による摩耗を長期にわたり抑制できる優
れた耐摩耗性を有することが要求される。
(Problems to be Solved by the Invention) Since the gauge portion of a limit gauge frequently comes into contact with an object to be measured, it is required to have excellent wear resistance that can suppress wear caused by this contact for a long period of time.

しかしながら、従来の限界ゲージにおける鋼材で形成さ
れたデージ部は、耐摩耗が充分でなく、被測定物との接
触によυ比較的短期間で摩耗して高い測定精度を維持で
きなくなる。
However, the dage portion made of steel in conventional limit gauges does not have sufficient wear resistance and wears out in a relatively short period of time due to contact with the object to be measured, making it impossible to maintain high measurement accuracy.

本発明は前記事情に基づいてなされたもので、ゲージ部
の耐摩耗性に優れ、高い測定精度を維持できる限界r−
ノを提供することを目的とする。
The present invention has been made based on the above-mentioned circumstances, and has excellent wear resistance of the gauge part and the limit r-
The purpose is to provide the following.

[発明の構成] (課題を解決するための手段と作用) 本発明の発明者は限界r−ノについて種々研究を重ねて
きたが、r−ノ部を鋼材を含む金属で形成した場合には
耐摩耗性の向上に限界があり、さらにゲージ部の耐摩耗
性を向上させるためには別な新しい材料を採用する必要
があることを見出し、ゲージ部の耐摩耗性を向上させる
適切な材料としてセラミックスに着目した。
[Structure of the Invention] (Means and Effects for Solving the Problem) The inventor of the present invention has conducted various studies regarding the limit r-no. It was discovered that there was a limit to the improvement of wear resistance, and that it was necessary to use a new material to further improve the wear resistance of the gauge part. We focused on ceramics.

本発明の限界ゲージは、被測定物と接触するゲージ部を
セラミックスで形成したことを特徴とするものである。
The limit gauge of the present invention is characterized in that the gauge portion that contacts the object to be measured is made of ceramics.

すなわち、本発明の限界ゲージは挟みr−ゾとプラグr
−ゾを対象としており、r−ノ本体にセラミックスで形
成したゲージ部を固着したものである。
In other words, the limit gauge of the present invention includes the clip r-zo and the plug r.
This is a gauge part made of ceramics that is fixed to the r-no body.

本発明の限界ゲージのダーツ本体は、機械的強度、耐食
性および耐熱性に優れた材料で形成する。
The dart body of the limit gauge of the present invention is made of a material with excellent mechanical strength, corrosion resistance, and heat resistance.

経済性を考慮すれば、ステンレス鋼、工具鋼などの銅で
形成することが好しく、また鋼以外の他の金属で形成す
ることも可能である。さらに、金属以外の材料、例えば
セラミックスで形成することも可能である。
Considering economic efficiency, it is preferable to use copper such as stainless steel or tool steel, and it is also possible to use metals other than steel. Furthermore, it is also possible to form it from a material other than metal, such as ceramics.

本発明の限界r−ノのr−ノ部はセラミックスの焼結体
で形成する。r−ノ部を形成するセラミックスは、吸水
性がなく且つち密性に優れていることが必要であり、ア
ルミナ、窒化けい素、炭化けい素などが適している。ア
ルミナA/!、203は熱膨張係数が金属に近いことが
好ましく、窒化けい素Si3N4はち密なものが容易に
得られ且つ変形が少なく熱膨張係数が小さい点が好まし
く、炭化けい素の場合はヤング率が高く変形が少ない点
が好ましい。また、窒化けい素の場合には高密度化を図
る上で焼結助剤として希土類酸化物およびアルミナを添
加し、炭化けい素の場合には焼結助剤としてBおよびC
を添加する。代表的な組成は、窒化けい素の場合に81
.N4100重量部、Y2O,3〜7重量部、AL20
s2〜6重量部、AtN O〜5重量部、TiO□0〜
4.5重量部、好ましくはSt、N4100重量部、A
t20.4重量部、Y2O35重量部、AtN 3重量
部、TlO21,5重量部である。炭化けい素の場合に
stc 100重量部、Bo、5〜4重量部、CO,5
〜3重量部である。At203の場合には約99%以上
がAt203である。
The r-no part of the limit r-no of the present invention is formed of a ceramic sintered body. The ceramic forming the r-section must have no water absorption and excellent tightness, and suitable materials include alumina, silicon nitride, and silicon carbide. Alumina A/! , 203 preferably has a thermal expansion coefficient close to that of metal, silicon nitride Si3N4 is preferable because it can be easily obtained in a dense form, has little deformation and has a small thermal expansion coefficient, and silicon carbide has a high Young's modulus. It is preferable that there is little deformation. In the case of silicon nitride, rare earth oxides and alumina are added as sintering aids to achieve high density, and in the case of silicon carbide, B and C are added as sintering aids.
Add. A typical composition is 81 for silicon nitride.
.. N4100 parts by weight, Y2O, 3 to 7 parts by weight, AL20
s2~6 parts by weight, AtNO~5 parts by weight, TiO□0~
4.5 parts by weight, preferably St, 100 parts by weight of N4, A
t20.4 parts by weight, Y2O35 parts by weight, AtN 3 parts by weight, and TlO21.5 parts by weight. In the case of silicon carbide, stc 100 parts by weight, Bo, 5 to 4 parts by weight, CO, 5
~3 parts by weight. In the case of At203, about 99% or more is At203.

ゲージ部は、被測定物と接触するために表面をゲージ製
作公差にもよるが0.3〜0.9S程度好ましくは0.
4〜O,SS程度に仕上げる。
The surface of the gauge part is in contact with the object to be measured, so the surface is preferably about 0.3 to 0.9S, although it depends on the gauge manufacturing tolerance.
Finish to about 4-0, SS.

そして、ゲージ部はエポキシ系の常温または熱硬化性樹
脂接着剤などの接着剤を用いてゲージ本体に接着する。
The gauge portion is then bonded to the gauge body using an adhesive such as an epoxy room temperature or thermosetting resin adhesive.

このように構成した限界r−ノを製作するためには、金
属材に機械加工を施してゲージ本体を形成するとともに
、セラミックス粉末を加圧成形および焼結してセラミッ
クス焼結体からなるゲージ部を形成する。ゲージ部は研
削加工を施した後に接着剤でr−ノ本体に接着する。ゲ
ージ部はダーツ本体に接着した後に、ラップ仕上げ加工
を施す。
In order to manufacture the limit r-no configured in this way, the gauge body is formed by machining a metal material, and the gauge part is made of a ceramic sintered body by press-molding and sintering ceramic powder. form. After the gauge part is ground, it is bonded to the r-no body with adhesive. After the gauge part is glued to the dart body, a lap finish is applied.

本発明の限界ゲージは、被測定物と頻繁に接触するゲー
ジ部を耐摩耗性に優れたセラミックスで形成しているの
で、長期にわたりr−ノ部の摩耗を抑制して高い測定精
度を維持できる。
In the limit gauge of the present invention, the gauge part that frequently comes into contact with the object to be measured is made of ceramic with excellent wear resistance, so it is possible to suppress wear of the r-no part and maintain high measurement accuracy over a long period of time. .

(実施例) 本発明の一実施例としての挟みダーツを第1図および第
2図について説明する。
(Example) A pincer dart as an example of the present invention will be described with reference to FIGS. 1 and 2.

図中1はゲージ本体、2は片状をなすセラミックス製の
r−ノ部である。r−ノ本体1は炭素工具鋼で形成され
ている。ゲージ部2はゲージ本体1の通シ側部1aに間
隙を存して対向配置され、また止り側部1bに間隙を存
して対向配置され、夫々エポキシ系常温硬化型接着剤で
接着されている。ゲージ部2は、SiN、100重量部
、Y2O35重量部、At2032重量部からなる混合
粉末を圧力200〜500に4/(−In”、温度17
00〜1800℃の条件でホットプレス焼結し、得た焼
結体を研削加工して形成されている。ゲージ部2はダー
ツ本体1の通り側部1&と止り側部1bに夫々一対づつ
接着した後に、研削加工とラップ仕上加工を施して必要
とする夫々の間隙寸法すなわち最大許容寸法と最小許容
寸法を確保する。例えば最大許容寸法+o、oos は12+0.014 、藁、最小許容寸法は12+o、
o o e”で+0.012 ある。
In the figure, 1 is the gauge body, and 2 is a piece-shaped ceramic r-node. The r-no body 1 is made of carbon tool steel. The gauge parts 2 are arranged opposite to each other with a gap between them on the through side part 1a of the gauge body 1, and are arranged oppositely to each other with a gap between them on the non-stop side part 1b, and are bonded to each other with an epoxy room temperature curing adhesive. There is. The gauge part 2 is made of a mixed powder consisting of 100 parts by weight of SiN, 35 parts by weight of Y2O, and 2032 parts by weight of At at a pressure of 200 to 500 4/(-In" and a temperature of 17
It is formed by hot press sintering under conditions of 00 to 1800°C and grinding the obtained sintered body. Gauge parts 2 are bonded in pairs to the running side part 1& and the dead side part 1b of the dart body 1, and are then ground and lapped to obtain the required gap dimensions, that is, the maximum allowable dimension and the minimum allowable dimension. secure. For example, the maximum allowable dimension + o, oos is 12 + 0.014, the minimum allowable dimension is 12 + o,
o o e” is +0.012.

このように構成された挟みゲージを使用して摩耗の状態
を調べた。この結果、5年間の使用に相当する強制試験
でのゲージ部2の摩耗は全く見られなかった。比較例と
してセラミックス製のゲージ部を使用しない従来の挟み
ゲージを使用した結果、1年間の使用に相当する強制試
験でのゲージ部は大きく摩耗し限界ゲージとして使用出
来なくなった。
The state of wear was investigated using the pinch gauge constructed in this manner. As a result, no wear of the gauge portion 2 was observed during the forced test equivalent to five years of use. As a comparative example, a conventional pincer gauge without a ceramic gauge part was used, and as a result, the gauge part was severely worn in a forced test corresponding to one year's use, and could no longer be used as a limit gauge.

本発明の他の実施例としてプラグゲージを第3図および
第4図について説明する。図中11はゲージ本体、12
は円形をなすゲージ部である。ゲージ本体Iノは前記実
施例のr−ノ本体と同じ材料で形成されておシ、r−ゾ
部12も前記実施例のr−ノ部と同じセラミックスの組
成で同じ条件で形成されている。ゲージ部12はr−ノ
本体11の通p側部と止り側部に夫々接着剤で接着され
て−0,0078,、である。
A plug gauge as another embodiment of the present invention will be described with reference to FIGS. 3 and 4. In the figure, 11 is the gauge body, 12
is a circular gauge part. The gauge main body I is formed of the same material as the r-no body of the above embodiment, and the r-zo part 12 is also formed of the same ceramic composition and under the same conditions as the r-no part of the above embodiment. . The gauge portion 12 is bonded to the through side and the stop side of the r-no body 11 with adhesive, respectively.

小許容寸法は35−o、o1o3 このように構成したグラグゲージと従来のプラグゲージ
との摩耗の度合を調べた結果、セラミックスを使用した
挟みゲージの場合とほぼ同様の結果を得た。
The small allowable dimensions are 35-o, o1o3.As a result of examining the degree of wear between the plug gauge constructed in this way and the conventional plug gauge, the results were almost the same as in the case of the pincer gauge using ceramics.

[発明の効果] 以上説明したように本発明の限界r−ノによ[Effect of the invention] As explained above, due to the limit r-no of the present invention,

【図面の簡単な説明】[Brief explanation of the drawing]

第1図および第2図は本発明の一実施例である挟みゲー
ジを示す正面図および側面図、第3図および第4図は他
の実施例を示す正面図および側面図である。 1・・・ゲージ本体、2・・・ゲージ部、1ノ・・・ゲ
ージ本体、12・・・r−ノ部。
1 and 2 are a front view and a side view showing a pinch gauge which is one embodiment of the present invention, and FIGS. 3 and 4 are a front view and a side view showing another embodiment. DESCRIPTION OF SYMBOLS 1... Gauge main body, 2... Gauge part, 1... Gauge main body, 12... R-no part.

Claims (3)

【特許請求の範囲】[Claims] (1)被測定物と接触するゲージ部がセラミックスで形
成されていることを特徴とする限界ゲージ。
(1) A limit gauge characterized in that the gauge part that comes into contact with the object to be measured is made of ceramics.
(2)ゲージ部が挟みゲージである特許請求の範囲第1
項記載の限界ゲージ。
(2) Claim 1 in which the gauge part is a pinch gauge
Limit gauge listed in section.
(3)ゲージ部がプラグゲージである特許請求の範囲第
1項記載の限界ゲージ。
(3) The limit gauge according to claim 1, wherein the gauge part is a plug gauge.
JP987788A 1988-01-20 1988-01-20 Limit gauge Pending JPH01185401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP987788A JPH01185401A (en) 1988-01-20 1988-01-20 Limit gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP987788A JPH01185401A (en) 1988-01-20 1988-01-20 Limit gauge

Publications (1)

Publication Number Publication Date
JPH01185401A true JPH01185401A (en) 1989-07-25

Family

ID=11732383

Family Applications (1)

Application Number Title Priority Date Filing Date
JP987788A Pending JPH01185401A (en) 1988-01-20 1988-01-20 Limit gauge

Country Status (1)

Country Link
JP (1) JPH01185401A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0454402A (en) * 1990-06-22 1992-02-21 Asahi Seimitsu Kogyo Kk Snap gauge
JP2006177908A (en) * 2004-12-24 2006-07-06 Kayaba Ind Co Ltd Plug gauge
CN105522354A (en) * 2016-02-26 2016-04-27 苏州国量量具科技有限公司 Processing technique for plug gauges
WO2017016226A1 (en) * 2015-07-27 2017-02-02 苏州国量量具科技有限公司 Plug gauge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0454402A (en) * 1990-06-22 1992-02-21 Asahi Seimitsu Kogyo Kk Snap gauge
JP2006177908A (en) * 2004-12-24 2006-07-06 Kayaba Ind Co Ltd Plug gauge
WO2017016226A1 (en) * 2015-07-27 2017-02-02 苏州国量量具科技有限公司 Plug gauge
CN105522354A (en) * 2016-02-26 2016-04-27 苏州国量量具科技有限公司 Processing technique for plug gauges
CN105522354B (en) * 2016-02-26 2018-09-21 苏州国量量具科技有限公司 A kind of processing technology of feeler gauge

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